rew2u

recently bought a 2002 SC430 which has an add-on reverse parking sensor system installed - does this interface with the Nav system? I believe this is the same add-on for the GS and LS models. It was working fine when I first acquired the car, but since resetting the Nav system home settings, etc., it no longer seems to work. Is there a setting in the Nav that turns this function on/off? Thanks